Normal Operation
WARNING: This page is about a different car, the 2013 Ford Fiesta. However, it is still accessible from the selected car via links, so may be relevant.
- DTC U0121:00 (Lost Communication With Anti-Lock Brake System (ABS) Control Module: No Sub Type Information) - sets in the Body Control Module (BCM) if data messages received from the ABS module are missing. For a complete list of all network messages, refer to MODULE COMMUNICATIONS NETWORK .
This pinpoint test is intended to diagnose the following:
- Communication network concern
- ABS module
- BCM